3 * Copyright (c) 1991-1997, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * "I wonder what the Entish is for 'yes' and 'no'," he thought.
18 /* Use an overridden DBL_DIG */
22 # define DBL_DIG OVR_DBL_DIG
24 /* The following is all to get DBL_DIG, in order to pick a nice
25 default value for printing floating point numbers in Gconvert.
35 #define DBL_DIG 15 /* A guess that works lots of places */
39 #if defined(USE_STDIO_PTR) && defined(STDIO_PTR_LVALUE) && defined(STDIO_CNT_LVALUE) && !defined(__QNX__)
44 #define FCALL this->*f
45 #define VTBL this->*vtbl
47 #else /* !PERL_OBJECT */
49 static IV asIV _((SV* sv));
50 static UV asUV _((SV* sv));
51 static SV *more_sv _((void));
52 static void more_xiv _((void));
53 static void more_xnv _((void));
54 static void more_xpv _((void));
55 static void more_xrv _((void));
56 static XPVIV *new_xiv _((void));
57 static XPVNV *new_xnv _((void));
58 static XPV *new_xpv _((void));
59 static XRV *new_xrv _((void));
60 static void del_xiv _((XPVIV* p));
61 static void del_xnv _((XPVNV* p));
62 static void del_xpv _((XPV* p));
63 static void del_xrv _((XRV* p));
64 static void sv_mortalgrow _((void));
65 static void sv_unglob _((SV* sv));
66 static void sv_check_thinkfirst _((SV *sv));
69 static void *my_safemalloc(MEM_SIZE size);
72 typedef void (*SVFUNC) _((SV*));
76 #endif /* PERL_OBJECT */
78 #define SV_CHECK_THINKFIRST(sv) if (SvTHINKFIRST(sv)) sv_check_thinkfirst(sv)
85 (p) = (SV*)safemalloc(sizeof(SV)); \
94 Safefree((char*)(p)); \
99 static I32 registry_size;
101 #define REGHASH(sv,size) ((((U32)(sv)) >> 2) % (size))
103 #define REG_REPLACE(sv,a,b) \
105 void* p = sv->sv_any; \
106 I32 h = REGHASH(sv, registry_size); \
108 while (registry[i] != (a)) { \
109 if (++i >= registry_size) \
112 die("SV registry bug"); \
117 #define REG_ADD(sv) REG_REPLACE(sv,Nullsv,sv)
118 #define REG_REMOVE(sv) REG_REPLACE(sv,sv,Nullsv)
124 if (PL_sv_count >= (registry_size >> 1))
126 SV **oldreg = registry;
127 I32 oldsize = registry_size;
129 registry_size = registry_size ? ((registry_size << 2) + 1) : 2037;
130 Newz(707, registry, registry_size, SV*);
135 for (i = 0; i < oldsize; ++i) {
136 SV* oldsv = oldreg[i];
162 for (i = 0; i < registry_size; ++i) {
163 SV* sv = registry[i];
164 if (sv && SvTYPE(sv) != SVTYPEMASK)
170 sv_add_arena(ptr, size, flags)
175 if (!(flags & SVf_FAKE))
182 * "A time to plant, and a time to uproot what was planted..."
185 #define plant_SV(p) \
187 SvANY(p) = (void *)PL_sv_root; \
188 SvFLAGS(p) = SVTYPEMASK; \
193 /* sv_mutex must be held while calling uproot_SV() */
194 #define uproot_SV(p) \
197 PL_sv_root = (SV*)SvANY(p); \
201 #define new_SV(p) do { \
212 #define del_SV(p) do { \
214 if (PL_debug & 32768) \
224 if (PL_debug & 32768) {
229 for (sva = PL_sv_arenaroot; sva; sva = (SV *) SvANY(sva)) {
231 svend = &sva[SvREFCNT(sva)];
232 if (p >= sv && p < svend)
236 warn("Attempt to free non-arena SV: 0x%lx", (unsigned long)p);
243 #else /* ! DEBUGGING */
245 #define del_SV(p) plant_SV(p)
247 #endif /* DEBUGGING */
250 sv_add_arena(char *ptr, U32 size, U32 flags)
255 Zero(sva, size, char);
257 /* The first SV in an arena isn't an SV. */
258 SvANY(sva) = (void *) PL_sv_arenaroot; /* ptr to next arena */
259 SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */
260 SvFLAGS(sva) = flags; /* FAKE if not to be freed */
262 PL_sv_arenaroot = sva;
263 PL_sv_root = sva + 1;
265 svend = &sva[SvREFCNT(sva) - 1];
268 SvANY(sv) = (void *)(SV*)(sv + 1);
269 SvFLAGS(sv) = SVTYPEMASK;
273 SvFLAGS(sv) = SVTYPEMASK;
276 /* sv_mutex must be held while calling more_sv() */
283 sv_add_arena(PL_nice_chunk, PL_nice_chunk_size, 0);
284 PL_nice_chunk = Nullch;
287 char *chunk; /* must use New here to match call to */
288 New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */
289 sv_add_arena(chunk, 1008, 0);
302 for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) {
303 svend = &sva[SvREFCNT(sva)];
304 for (sv = sva + 1; sv < svend; ++sv) {
305 if (SvTYPE(sv) != SVTYPEMASK)
314 do_report_used(SV *sv)
316 if (SvTYPE(sv) != SVTYPEMASK) {
317 /* XXX Perhaps this ought to go to Perl_debug_log, if DEBUGGING. */
318 PerlIO_printf(PerlIO_stderr(), "****\n");
326 visit(FUNC_NAME_TO_PTR(do_report_used));
330 do_clean_objs(SV *sv)
334 if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) {
335 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv));)
341 /* XXX Might want to check arrays, etc. */
344 #ifndef DISABLE_DESTRUCTOR_KLUDGE
346 do_clean_named_objs(SV *sv)
348 if (SvTYPE(sv) == SVt_PVGV) {
349 if ( SvOBJECT(GvSV(sv)) ||
350 GvAV(sv) && SvOBJECT(GvAV(sv)) ||
351 GvHV(sv) && SvOBJECT(GvHV(sv)) ||
352 GvIO(sv) && SvOBJECT(GvIO(sv)) ||
353 GvCV(sv) && SvOBJECT(GvCV(sv)) )
355 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning named glob object:\n "), sv_dump(sv));)
365 PL_in_clean_objs = TRUE;
366 visit(FUNC_NAME_TO_PTR(do_clean_objs));
367 #ifndef DISABLE_DESTRUCTOR_KLUDGE
368 /* some barnacles may yet remain, clinging to typeglobs */
369 visit(FUNC_NAME_TO_PTR(do_clean_named_objs));
371 PL_in_clean_objs = FALSE;
377 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops: SV at 0x%lx\n", sv) );)
378 SvFLAGS(sv) |= SVf_BREAK;
385 PL_in_clean_all = TRUE;
386 visit(FUNC_NAME_TO_PTR(do_clean_all));
387 PL_in_clean_all = FALSE;
396 /* Free arenas here, but be careful about fake ones. (We assume
397 contiguity of the fake ones with the corresponding real ones.) */
399 for (sva = PL_sv_arenaroot; sva; sva = svanext) {
400 svanext = (SV*) SvANY(sva);
401 while (svanext && SvFAKE(svanext))
402 svanext = (SV*) SvANY(svanext);
405 Safefree((void *)sva);
409 Safefree(PL_nice_chunk);
410 PL_nice_chunk = Nullch;
411 PL_nice_chunk_size = 0;
425 * See comment in more_xiv() -- RAM.
427 PL_xiv_root = *(IV**)xiv;
429 return (XPVIV*)((char*)xiv - STRUCT_OFFSET(XPVIV, xiv_iv));
435 IV* xiv = (IV*)((char*)(p) + STRUCT_OFFSET(XPVIV, xiv_iv));
437 *(IV**)xiv = PL_xiv_root;
448 New(705, ptr, 1008/sizeof(XPV), XPV);
449 ptr->xpv_pv = (char*)PL_xiv_arenaroot; /* linked list of xiv arenas */
450 PL_xiv_arenaroot = ptr; /* to keep Purify happy */
453 xivend = &xiv[1008 / sizeof(IV) - 1];
454 xiv += (sizeof(XPV) - 1) / sizeof(IV) + 1; /* fudge by size of XPV */
456 while (xiv < xivend) {
457 *(IV**)xiv = (IV *)(xiv + 1);
471 PL_xnv_root = *(double**)xnv;
473 return (XPVNV*)((char*)xnv - STRUCT_OFFSET(XPVNV, xnv_nv));
479 double* xnv = (double*)((char*)(p) + STRUCT_OFFSET(XPVNV, xnv_nv));
481 *(double**)xnv = PL_xnv_root;
489 register double* xnv;
490 register double* xnvend;
491 New(711, xnv, 1008/sizeof(double), double);
492 xnvend = &xnv[1008 / sizeof(double) - 1];
493 xnv += (sizeof(XPVIV) - 1) / sizeof(double) + 1; /* fudge by sizeof XPVIV */
495 while (xnv < xnvend) {
496 *(double**)xnv = (double*)(xnv + 1);
510 PL_xrv_root = (XRV*)xrv->xrv_rv;
519 p->xrv_rv = (SV*)PL_xrv_root;
528 register XRV* xrvend;
529 New(712, PL_xrv_root, 1008/sizeof(XRV), XRV);
531 xrvend = &xrv[1008 / sizeof(XRV) - 1];
532 while (xrv < xrvend) {
533 xrv->xrv_rv = (SV*)(xrv + 1);
547 PL_xpv_root = (XPV*)xpv->xpv_pv;
556 p->xpv_pv = (char*)PL_xpv_root;
565 register XPV* xpvend;
566 New(713, PL_xpv_root, 1008/sizeof(XPV), XPV);
568 xpvend = &xpv[1008 / sizeof(XPV) - 1];
569 while (xpv < xpvend) {
570 xpv->xpv_pv = (char*)(xpv + 1);
577 #define new_XIV() (void*)safemalloc(sizeof(XPVIV))
578 #define del_XIV(p) Safefree((char*)p)
580 #define new_XIV() (void*)new_xiv()
581 #define del_XIV(p) del_xiv((XPVIV*) p)
585 #define new_XNV() (void*)safemalloc(sizeof(XPVNV))
586 #define del_XNV(p) Safefree((char*)p)
588 #define new_XNV() (void*)new_xnv()
589 #define del_XNV(p) del_xnv((XPVNV*) p)
593 #define new_XRV() (void*)safemalloc(sizeof(XRV))
594 #define del_XRV(p) Safefree((char*)p)
596 #define new_XRV() (void*)new_xrv()
597 #define del_XRV(p) del_xrv((XRV*) p)
601 #define new_XPV() (void*)safemalloc(sizeof(XPV))
602 #define del_XPV(p) Safefree((char*)p)
604 #define new_XPV() (void*)new_xpv()
605 #define del_XPV(p) del_xpv((XPV *)p)
609 # define my_safemalloc(s) safemalloc(s)
610 # define my_safefree(s) free(s)
613 my_safemalloc(MEM_SIZE size)
616 New(717, p, size, char);
619 # define my_safefree(s) Safefree(s)
622 #define new_XPVIV() (void*)my_safemalloc(sizeof(XPVIV))
623 #define del_XPVIV(p) my_safefree((char*)p)
625 #define new_XPVNV() (void*)my_safemalloc(sizeof(XPVNV))
626 #define del_XPVNV(p) my_safefree((char*)p)
628 #define new_XPVMG() (void*)my_safemalloc(sizeof(XPVMG))
629 #define del_XPVMG(p) my_safefree((char*)p)
631 #define new_XPVLV() (void*)my_safemalloc(sizeof(XPVLV))
632 #define del_XPVLV(p) my_safefree((char*)p)
634 #define new_XPVAV() (void*)my_safemalloc(sizeof(XPVAV))
635 #define del_XPVAV(p) my_safefree((char*)p)
637 #define new_XPVHV() (void*)my_safemalloc(sizeof(XPVHV))
638 #define del_XPVHV(p) my_safefree((char*)p)
640 #define new_XPVCV() (void*)my_safemalloc(sizeof(XPVCV))
641 #define del_XPVCV(p) my_safefree((char*)p)
643 #define new_XPVGV() (void*)my_safemalloc(sizeof(XPVGV))
644 #define del_XPVGV(p) my_safefree((char*)p)
646 #define new_XPVBM() (void*)my_safemalloc(sizeof(XPVBM))
647 #define del_XPVBM(p) my_safefree((char*)p)
649 #define new_XPVFM() (void*)my_safemalloc(sizeof(XPVFM))
650 #define del_XPVFM(p) my_safefree((char*)p)
652 #define new_XPVIO() (void*)my_safemalloc(sizeof(XPVIO))
653 #define del_XPVIO(p) my_safefree((char*)p)
656 sv_upgrade(register SV *sv, U32 mt)
666 if (SvTYPE(sv) == mt)
672 switch (SvTYPE(sv)) {
687 nv = (double)SvIVX(sv);
693 else if (mt < SVt_PVIV)
710 pv = (char*)SvRV(sv);
714 nv = (double)(unsigned long)pv;
730 else if (mt == SVt_NV)
741 del_XPVIV(SvANY(sv));
751 del_XPVNV(SvANY(sv));
761 del_XPVMG(SvANY(sv));
764 croak("Can't upgrade that kind of scalar");
769 croak("Can't upgrade to undef");
771 SvANY(sv) = new_XIV();
775 SvANY(sv) = new_XNV();
779 SvANY(sv) = new_XRV();
783 SvANY(sv) = new_XPV();
789 SvANY(sv) = new_XPVIV();
799 SvANY(sv) = new_XPVNV();
807 SvANY(sv) = new_XPVMG();
817 SvANY(sv) = new_XPVLV();
831 SvANY(sv) = new_XPVAV();
846 SvANY(sv) = new_XPVHV();
862 SvANY(sv) = new_XPVCV();
863 Zero(SvANY(sv), 1, XPVCV);
873 SvANY(sv) = new_XPVGV();
888 SvANY(sv) = new_XPVBM();
901 SvANY(sv) = new_XPVFM();
902 Zero(SvANY(sv), 1, XPVFM);
912 SvANY(sv) = new_XPVIO();
913 Zero(SvANY(sv), 1, XPVIO);
924 SvFLAGS(sv) &= ~SVTYPEMASK;
933 SV *t = sv_newmortal();
943 else if (sv == (SV*)0x55555555 || SvTYPE(sv) == 'U') {
947 else if (sv == &PL_sv_undef || sv == &PL_sv_no || sv == &PL_sv_yes) {
948 if (sv == &PL_sv_undef) {
949 sv_catpv(t, "SV_UNDEF");
950 if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
951 SVs_GMG|SVs_SMG|SVs_RMG)) &&
955 else if (sv == &PL_sv_no) {
956 sv_catpv(t, "SV_NO");
957 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
958 SVs_GMG|SVs_SMG|SVs_RMG)) &&
959 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
966 sv_catpv(t, "SV_YES");
967 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
968 SVs_GMG|SVs_SMG|SVs_RMG)) &&
969 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
972 SvPVX(sv) && *SvPVX(sv) == '1' &&
978 else if (SvREFCNT(sv) == 0) {
984 if (SvCUR(t) + unref > 10) {
985 SvCUR(t) = unref + 3;
993 switch (SvTYPE(sv)) {
995 sv_catpv(t, "FREED");
999 sv_catpv(t, "UNDEF");
1014 sv_catpv(t, "PVIV");
1017 sv_catpv(t, "PVNV");
1020 sv_catpv(t, "PVMG");
1023 sv_catpv(t, "PVLV");
1033 sv_catpvf(t, "CV(%s)", GvNAME(CvGV(sv)));
1035 sv_catpv(t, "CV()");
1053 sv_catpv(t, "(null)");
1055 sv_catpvf(t, "(%ld+\"%.127s\")",(long)SvIVX(sv),SvPVX(sv));
1057 sv_catpvf(t, "(\"%.127s\")",SvPVX(sv));
1059 else if (SvNOKp(sv)) {
1060 SET_NUMERIC_STANDARD();
1061 sv_catpvf(t, "(%g)",SvNVX(sv));
1063 else if (SvIOKp(sv))
1064 sv_catpvf(t, "(%ld)",(long)SvIVX(sv));
1073 return SvPV(t, PL_na);
1074 #else /* DEBUGGING */
1076 #endif /* DEBUGGING */
1080 sv_backoff(register SV *sv)
1084 char *s = SvPVX(sv);
1085 SvLEN(sv) += SvIVX(sv);
1086 SvPVX(sv) -= SvIVX(sv);
1088 Move(s, SvPVX(sv), SvCUR(sv)+1, char);
1090 SvFLAGS(sv) &= ~SVf_OOK;
1096 sv_grow(register SV *sv, register I32 newlen)
1098 sv_grow(SV* sv, unsigned long newlen)
1103 #ifdef HAS_64K_LIMIT
1104 if (newlen >= 0x10000) {
1105 PerlIO_printf(Perl_debug_log, "Allocation too large: %lx\n", newlen);
1108 #endif /* HAS_64K_LIMIT */
1111 if (SvTYPE(sv) < SVt_PV) {
1112 sv_upgrade(sv, SVt_PV);
1115 else if (SvOOK(sv)) { /* pv is offset? */
1118 if (newlen > SvLEN(sv))
1119 newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */
1120 #ifdef HAS_64K_LIMIT
1121 if (newlen >= 0x10000)
1127 if (newlen > SvLEN(sv)) { /* need more room? */
1128 if (SvLEN(sv) && s) {
1129 #if defined(MYMALLOC) && !defined(PURIFY) && !defined(LEAKTEST)
1130 STRLEN l = malloced_size((void*)SvPVX(sv));
1136 Renew(s,newlen,char);
1139 New(703,s,newlen,char);
1141 SvLEN_set(sv, newlen);
1147 sv_setiv(register SV *sv, IV i)
1149 SV_CHECK_THINKFIRST(sv);
1150 switch (SvTYPE(sv)) {
1152 sv_upgrade(sv, SVt_IV);
1155 sv_upgrade(sv, SVt_PVNV);
1159 sv_upgrade(sv, SVt_PVIV);
1175 croak("Can't coerce %s to integer in %s", sv_reftype(sv,0),
1176 op_desc[PL_op->op_type]);
1179 (void)SvIOK_only(sv); /* validate number */
1185 sv_setiv_mg(register SV *sv, IV i)
1192 sv_setuv(register SV *sv, UV u)
1197 sv_setnv(sv, (double)u);
1201 sv_setuv_mg(register SV *sv, UV u)
1208 sv_setnv(register SV *sv, double num)
1210 SV_CHECK_THINKFIRST(sv);
1211 switch (SvTYPE(sv)) {
1214 sv_upgrade(sv, SVt_NV);
1219 sv_upgrade(sv, SVt_PVNV);
1235 croak("Can't coerce %s to number in %s", sv_reftype(sv,0),
1236 op_name[PL_op->op_type]);
1240 (void)SvNOK_only(sv); /* validate number */
1245 sv_setnv_mg(register SV *sv, double num)
1252 not_a_number(SV *sv)
1258 char *limit = tmpbuf + sizeof(tmpbuf) - 8;
1259 /* each *s can expand to 4 chars + "...\0",
1260 i.e. need room for 8 chars */
1262 for (s = SvPVX(sv); *s && d < limit; s++) {
1264 if (ch & 128 && !isPRINT_LC(ch)) {
1273 else if (ch == '\r') {
1277 else if (ch == '\f') {
1281 else if (ch == '\\') {
1285 else if (isPRINT_LC(ch))
1300 warner(WARN_NUMERIC, "Argument \"%s\" isn't numeric in %s", tmpbuf,
1301 op_name[PL_op->op_type]);
1303 warner(WARN_NUMERIC, "Argument \"%s\" isn't numeric", tmpbuf);
1307 sv_2iv(register SV *sv)
1311 if (SvGMAGICAL(sv)) {
1316 if (SvNVX(sv) < 0.0)
1317 return I_V(SvNVX(sv));
1319 return (IV) U_V(SvNVX(sv));
1321 if (SvPOKp(sv) && SvLEN(sv))
1324 if (!(SvFLAGS(sv) & SVs_PADTMP)) {
1326 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing)
1327 warner(WARN_UNINITIALIZED, warn_uninit);
1332 if (SvTHINKFIRST(sv)) {
1336 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1337 return SvIV(tmpstr);
1338 #endif /* OVERLOAD */
1339 return (IV)SvRV(sv);
1341 if (SvREADONLY(sv)) {
1343 if (SvNVX(sv) < 0.0)
1344 return I_V(SvNVX(sv));
1346 return (IV) U_V(SvNVX(sv));
1348 if (SvPOKp(sv) && SvLEN(sv))
1352 if (ckWARN(WARN_UNINITIALIZED))
1353 warner(WARN_UNINITIALIZED, warn_uninit);
1358 switch (SvTYPE(sv)) {
1360 sv_upgrade(sv, SVt_IV);
1363 sv_upgrade(sv, SVt_PVIV);
1366 sv_upgrade(sv, SVt_PVNV);
1371 if (SvNVX(sv) < 0.0)
1372 SvIVX(sv) = I_V(SvNVX(sv));
1374 SvUVX(sv) = U_V(SvNVX(sv));
1376 else if (SvPOKp(sv) && SvLEN(sv)) {
1378 SvIVX(sv) = asIV(sv);
1382 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1383 warner(WARN_UNINITIALIZED, warn_uninit);
1386 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2iv(%ld)\n",
1387 (unsigned long)sv,(long)SvIVX(sv)));
1392 sv_2uv(register SV *sv)
1396 if (SvGMAGICAL(sv)) {
1401 return U_V(SvNVX(sv));
1402 if (SvPOKp(sv) && SvLEN(sv))
1405 if (!(SvFLAGS(sv) & SVs_PADTMP)) {
1407 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing)
1408 warner(WARN_UNINITIALIZED, warn_uninit);
1413 if (SvTHINKFIRST(sv)) {
1417 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1418 return SvUV(tmpstr);
1419 #endif /* OVERLOAD */
1420 return (UV)SvRV(sv);
1422 if (SvREADONLY(sv)) {
1424 return U_V(SvNVX(sv));
1426 if (SvPOKp(sv) && SvLEN(sv))
1430 if (ckWARN(WARN_UNINITIALIZED))
1431 warner(WARN_UNINITIALIZED, warn_uninit);
1436 switch (SvTYPE(sv)) {
1438 sv_upgrade(sv, SVt_IV);
1441 sv_upgrade(sv, SVt_PVIV);
1444 sv_upgrade(sv, SVt_PVNV);
1449 SvUVX(sv) = U_V(SvNVX(sv));
1451 else if (SvPOKp(sv) && SvLEN(sv)) {
1453 SvUVX(sv) = asUV(sv);
1456 if (!(SvFLAGS(sv) & SVs_PADTMP)) {
1458 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing)
1459 warner(WARN_UNINITIALIZED, warn_uninit);
1463 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2uv(%lu)\n",
1464 (unsigned long)sv,SvUVX(sv)));
1469 sv_2nv(register SV *sv)
1473 if (SvGMAGICAL(sv)) {
1477 if (SvPOKp(sv) && SvLEN(sv)) {
1479 if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !looks_like_number(sv))
1481 SET_NUMERIC_STANDARD();
1482 return atof(SvPVX(sv));
1485 return (double)SvIVX(sv);
1487 if (!(SvFLAGS(sv) & SVs_PADTMP)) {
1489 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing)
1490 warner(WARN_UNINITIALIZED, warn_uninit);
1495 if (SvTHINKFIRST(sv)) {
1499 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)))
1500 return SvNV(tmpstr);
1501 #endif /* OVERLOAD */
1502 return (double)(unsigned long)SvRV(sv);
1504 if (SvREADONLY(sv)) {
1506 if (SvPOKp(sv) && SvLEN(sv)) {
1507 if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !looks_like_number(sv))
1509 SET_NUMERIC_STANDARD();
1510 return atof(SvPVX(sv));
1513 return (double)SvIVX(sv);
1514 if (ckWARN(WARN_UNINITIALIZED))
1515 warner(WARN_UNINITIALIZED, warn_uninit);
1519 if (SvTYPE(sv) < SVt_NV) {
1520 if (SvTYPE(sv) == SVt_IV)
1521 sv_upgrade(sv, SVt_PVNV);
1523 sv_upgrade(sv, SVt_NV);
1524 DEBUG_c(SET_NUMERIC_STANDARD());
1525 DEBUG_c(PerlIO_printf(Perl_debug_log,
1526 "0x%lx num(%g)\n",(unsigned long)sv,SvNVX(sv)));
1528 else if (SvTYPE(sv) < SVt_PVNV)
1529 sv_upgrade(sv, SVt_PVNV);
1531 (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv)))
1533 SvNVX(sv) = (double)SvIVX(sv);
1535 else if (SvPOKp(sv) && SvLEN(sv)) {
1537 if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !looks_like_number(sv))
1539 SET_NUMERIC_STANDARD();
1540 SvNVX(sv) = atof(SvPVX(sv));
1544 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1545 warner(WARN_UNINITIALIZED, warn_uninit);
1549 DEBUG_c(SET_NUMERIC_STANDARD());
1550 DEBUG_c(PerlIO_printf(Perl_debug_log,
1551 "0x%lx 2nv(%g)\n",(unsigned long)sv,SvNVX(sv)));
1558 I32 numtype = looks_like_number(sv);
1562 return atol(SvPVX(sv));
1565 if (ckWARN(WARN_NUMERIC))
1568 SET_NUMERIC_STANDARD();
1569 d = atof(SvPVX(sv));
1579 I32 numtype = looks_like_number(sv);
1583 return strtoul(SvPVX(sv), Null(char**), 10);
1587 if (ckWARN(WARN_NUMERIC))
1590 SET_NUMERIC_STANDARD();
1591 return U_V(atof(SvPVX(sv)));
1595 looks_like_number(SV *sv)
1598 register char *send;
1599 register char *sbegin;
1607 else if (SvPOKp(sv))
1608 sbegin = SvPV(sv, len);
1611 send = sbegin + len;
1616 if (*s == '+' || *s == '-')
1619 /* next must be digit or '.' */
1623 } while (isDIGIT(*s));
1626 while (isDIGIT(*s)) /* optional digits after "." */
1630 else if (*s == '.') {
1632 /* no digits before '.' means we need digits after it */
1636 } while (isDIGIT(*s));
1645 * we return 1 if the number can be converted to _integer_ with atol()
1646 * and 2 if you need (int)atof().
1650 /* we can have an optional exponent part */
1651 if (*s == 'e' || *s == 'E') {
1654 if (*s == '+' || *s == '-')
1659 } while (isDIGIT(*s));
1668 if (len == 10 && memEQ(sbegin, "0 but true", 10))
1674 sv_2pv(register SV *sv, STRLEN *lp)
1679 char tmpbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */
1685 if (SvGMAGICAL(sv)) {
1692 (void)sprintf(tmpbuf,"%ld",(long)SvIVX(sv));
1697 SET_NUMERIC_STANDARD();
1698 Gconvert(SvNVX(sv), DBL_DIG, 0, tmpbuf);
1703 if (!(SvFLAGS(sv) & SVs_PADTMP)) {
1705 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing)
1706 warner(WARN_UNINITIALIZED, warn_uninit);
1712 if (SvTHINKFIRST(sv)) {
1716 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)))
1717 return SvPV(tmpstr,*lp);
1718 #endif /* OVERLOAD */
1725 switch (SvTYPE(sv)) {
1727 if ( ((SvFLAGS(sv) &
1728 (SVs_OBJECT|SVf_OK|SVs_GMG|SVs_SMG|SVs_RMG))
1729 == (SVs_OBJECT|SVs_RMG))
1730 && strEQ(s=HvNAME(SvSTASH(sv)), "Regexp")
1731 && (mg = mg_find(sv, 'r'))) {
1733 regexp *re = (regexp *)mg->mg_obj;
1736 char *fptr = "msix";
1741 U16 reganch = (re->reganch & PMf_COMPILETIME) >> 12;
1743 while(ch = *fptr++) {
1745 reflags[left++] = ch;
1748 reflags[right--] = ch;
1753 reflags[left] = '-';
1757 mg->mg_len = re->prelen + 4 + left;
1758 New(616, mg->mg_ptr, mg->mg_len + 1 + left, char);
1759 Copy("(?", mg->mg_ptr, 2, char);
1760 Copy(reflags, mg->mg_ptr+2, left, char);
1761 Copy(":", mg->mg_ptr+left+2, 1, char);
1762 Copy(re->precomp, mg->mg_ptr+3+left, re->prelen, char);
1763 mg->mg_ptr[mg->mg_len - 1] = ')';
1764 mg->mg_ptr[mg->mg_len] = 0;
1766 PL_reginterp_cnt += re->program[0].next_off;
1778 case SVt_PVBM: s = "SCALAR"; break;
1779 case SVt_PVLV: s = "LVALUE"; break;
1780 case SVt_PVAV: s = "ARRAY"; break;
1781 case SVt_PVHV: s = "HASH"; break;
1782 case SVt_PVCV: s = "CODE"; break;
1783 case SVt_PVGV: s = "GLOB"; break;
1784 case SVt_PVFM: s = "FORMAT"; break;
1785 case SVt_PVIO: s = "IO"; break;
1786 default: s = "UNKNOWN"; break;
1790 sv_setpvf(tsv, "%s=%s", HvNAME(SvSTASH(sv)), s);
1793 sv_catpvf(tsv, "(0x%lx)", (unsigned long)sv);
1799 if (SvREADONLY(sv)) {
1801 SET_NUMERIC_STANDARD();
1802 Gconvert(SvNVX(sv), DBL_DIG, 0, tmpbuf);
1807 (void)sprintf(tmpbuf,"%ld",(long)SvIVX(sv));
1813 if (ckWARN(WARN_UNINITIALIZED))
1814 warner(WARN_UNINITIALIZED, warn_uninit);
1820 (void)SvUPGRADE(sv, SVt_PV);
1822 if (SvTYPE(sv) < SVt_PVNV)
1823 sv_upgrade(sv, SVt_PVNV);
1826 olderrno = errno; /* some Xenix systems wipe out errno here */
1828 if (SvNVX(sv) == 0.0)
1829 (void)strcpy(s,"0");
1833 SET_NUMERIC_STANDARD();
1834 Gconvert(SvNVX(sv), DBL_DIG, 0, s);
1837 #ifdef FIXNEGATIVEZERO
1838 if (*s == '-' && s[1] == '0' && !s[2])
1847 else if (SvIOKp(sv)) {
1848 U32 oldIOK = SvIOK(sv);
1849 if (SvTYPE(sv) < SVt_PVIV)
1850 sv_upgrade(sv, SVt_PVIV);
1851 olderrno = errno; /* some Xenix systems wipe out errno here */
1852 sv_setpviv(sv, SvIVX(sv));
1862 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1863 warner(WARN_UNINITIALIZED, warn_uninit);
1867 *lp = s - SvPVX(sv);
1870 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",(unsigned long)sv,SvPVX(sv)));
1874 if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */
1875 /* Sneaky stuff here */
1879 tsv = newSVpv(tmpbuf, 0);
1895 len = strlen(tmpbuf);
1897 #ifdef FIXNEGATIVEZERO
1898 if (len == 2 && t[0] == '-' && t[1] == '0') {
1903 (void)SvUPGRADE(sv, SVt_PV);
1905 s = SvGROW(sv, len + 1);
1913 /* This function is only called on magical items */
1915 sv_2bool(register SV *sv)
1927 if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_)))
1928 return SvTRUE(tmpsv);
1930 #endif /* OVERLOAD */
1931 return SvRV(sv) != 0;
1934 register XPV* Xpvtmp;
1935 if ((Xpvtmp = (XPV*)SvANY(sv)) &&
1936 (*Xpvtmp->xpv_pv > '0' ||
1937 Xpvtmp->xpv_cur > 1 ||
1938 (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0')))
1945 return SvIVX(sv) != 0;
1948 return SvNVX(sv) != 0.0;
1955 /* Note: sv_setsv() should not be called with a source string that needs
1956 * to be reused, since it may destroy the source string if it is marked
1961 sv_setsv(SV *dstr, register SV *sstr)
1964 register U32 sflags;
1970 SV_CHECK_THINKFIRST(dstr);
1972 sstr = &PL_sv_undef;
1973 stype = SvTYPE(sstr);
1974 dtype = SvTYPE(dstr);
1976 if (dtype == SVt_PVGV && (SvFLAGS(dstr) & SVf_FAKE)) {
1977 sv_unglob(dstr); /* so fake GLOB won't perpetuate */
1978 sv_setpvn(dstr, "", 0);
1979 (void)SvPOK_only(dstr);
1980 dtype = SvTYPE(dstr);
1985 #endif /* OVERLOAD */
1986 /* There's a lot of redundancy below but we're going for speed here */
1991 if (dtype != SVt_PVGV) {
1992 (void)SvOK_off(dstr);
2000 sv_upgrade(dstr, SVt_IV);
2003 sv_upgrade(dstr, SVt_PVNV);
2007 sv_upgrade(dstr, SVt_PVIV);
2010 (void)SvIOK_only(dstr);
2011 SvIVX(dstr) = SvIVX(sstr);
2022 sv_upgrade(dstr, SVt_NV);
2027 sv_upgrade(dstr, SVt_PVNV);
2030 SvNVX(dstr) = SvNVX(sstr);
2031 (void)SvNOK_only(dstr);
2039 sv_upgrade(dstr, SVt_RV);
2040 else if (dtype == SVt_PVGV &&
2041 SvTYPE(SvRV(sstr)) == SVt_PVGV) {
2044 if (PL_curcop->cop_stash != GvSTASH(dstr))
2045 GvIMPORTED_on(dstr);
2055 sv_upgrade(dstr, SVt_PV);
2058 if (dtype < SVt_PVIV)
2059 sv_upgrade(dstr, SVt_PVIV);
2062 if (dtype < SVt_PVNV)
2063 sv_upgrade(dstr, SVt_PVNV);
2070 croak("Bizarre copy of %s in %s", sv_reftype(sstr, 0),
2071 op_name[PL_op->op_type]);
2073 croak("Bizarre copy of %s", sv_reftype(sstr, 0));
2077 if (dtype <= SVt_PVGV) {
2079 if (dtype != SVt_PVGV) {
2080 char *name = GvNAME(sstr);
2081 STRLEN len = GvNAMELEN(sstr);
2082 sv_upgrade(dstr, SVt_PVGV);
2083 sv_magic(dstr, dstr, '*', name, len);
2084 GvSTASH(dstr) = (HV*)SvREFCNT_inc(GvSTASH(sstr));
2085 GvNAME(dstr) = savepvn(name, len);
2086 GvNAMELEN(dstr) = len;
2087 SvFAKE_on(dstr); /* can coerce to non-glob */
2089 /* ahem, death to those who redefine active sort subs */
2090 else if (PL_curstackinfo->si_type == PERLSI_SORT
2091 && GvCV(dstr) && PL_sortcop == CvSTART(GvCV(dstr)))
2092 croak("Can't redefine active sort subroutine %s",
2094 (void)SvOK_off(dstr);
2095 GvINTRO_off(dstr); /* one-shot flag */
2097 GvGP(dstr) = gp_ref(GvGP(sstr));
2099 if (PL_curcop->cop_stash != GvSTASH(dstr))
2100 GvIMPORTED_on(dstr);
2107 if (SvGMAGICAL(sstr)) {
2109 if (SvTYPE(sstr) != stype) {
2110 stype = SvTYPE(sstr);
2111 if (stype == SVt_PVGV && dtype <= SVt_PVGV)
2115 if (stype == SVt_PVLV)
2116 SvUPGRADE(dstr, SVt_PVNV);
2118 SvUPGRADE(dstr, stype);
2121 sflags = SvFLAGS(sstr);
2123 if (sflags & SVf_ROK) {
2124 if (dtype >= SVt_PV) {
2125 if (dtype == SVt_PVGV) {
2126 SV *sref = SvREFCNT_inc(SvRV(sstr));
2128 int intro = GvINTRO(dstr);
2132 GvGP(dstr)->gp_refcnt--;
2133 GvINTRO_off(dstr); /* one-shot flag */
2134 Newz(602,gp, 1, GP);
2135 GvGP(dstr) = gp_ref(gp);
2136 GvSV(dstr) = NEWSV(72,0);
2137 GvLINE(dstr) = PL_curcop->cop_line;
2138 GvEGV(dstr) = (GV*)dstr;
2141 switch (SvTYPE(sref)) {
2144 SAVESPTR(GvAV(dstr));
2146 dref = (SV*)GvAV(dstr);
2147 GvAV(dstr) = (AV*)sref;
2148 if (PL_curcop->cop_stash != GvSTASH(dstr))
2149 GvIMPORTED_AV_on(dstr);
2153 SAVESPTR(GvHV(dstr));
2155 dref = (SV*)GvHV(dstr);
2156 GvHV(dstr) = (HV*)sref;
2157 if (PL_curcop->cop_stash != GvSTASH(dstr))
2158 GvIMPORTED_HV_on(dstr);
2162 if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) {
2163 SvREFCNT_dec(GvCV(dstr));
2164 GvCV(dstr) = Nullcv;
2165 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2166 PL_sub_generation++;
2168 SAVESPTR(GvCV(dstr));
2171 dref = (SV*)GvCV(dstr);
2172 if (GvCV(dstr) != (CV*)sref) {
2173 CV* cv = GvCV(dstr);
2175 if (!GvCVGEN((GV*)dstr) &&
2176 (CvROOT(cv) || CvXSUB(cv)))
2178 SV *const_sv = cv_const_sv(cv);
2179 bool const_changed = TRUE;
2181 const_changed = sv_cmp(const_sv,
2182 op_const_sv(CvSTART((CV*)sref),
2184 /* ahem, death to those who redefine
2185 * active sort subs */
2186 if (PL_curstackinfo->si_type == PERLSI_SORT &&
2187 PL_sortcop == CvSTART(cv))
2189 "Can't redefine active sort subroutine %s",
2190 GvENAME((GV*)dstr));
2191 if (ckWARN(WARN_REDEFINE) || (const_changed && const_sv)) {
2192 if (!(CvGV(cv) && GvSTASH(CvGV(cv))
2193 && HvNAME(GvSTASH(CvGV(cv)))
2194 && strEQ(HvNAME(GvSTASH(CvGV(cv))),
2196 warner(WARN_REDEFINE, const_sv ?
2197 "Constant subroutine %s redefined"
2198 : "Subroutine %s redefined",
2199 GvENAME((GV*)dstr));
2202 cv_ckproto(cv, (GV*)dstr,
2203 SvPOK(sref) ? SvPVX(sref) : Nullch);
2205 GvCV(dstr) = (CV*)sref;
2206 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2207 GvASSUMECV_on(dstr);
2208 PL_sub_generation++;
2210 if (PL_curcop->cop_stash != GvSTASH(dstr))
2211 GvIMPORTED_CV_on(dstr);
2215 SAVESPTR(GvIOp(dstr));
2217 dref = (SV*)GvIOp(dstr);
2218 GvIOp(dstr) = (IO*)sref;
2222 SAVESPTR(GvSV(dstr));
2224 dref = (SV*)GvSV(dstr);
2226 if (PL_curcop->cop_stash != GvSTASH(dstr))
2227 GvIMPORTED_SV_on(dstr);
2238 (void)SvOOK_off(dstr); /* backoff */
2239 Safefree(SvPVX(dstr));
2240 SvLEN(dstr)=SvCUR(dstr)=0;
2243 (void)SvOK_off(dstr);
2244 SvRV(dstr) = SvREFCNT_inc(SvRV(sstr));
2246 if (sflags & SVp_NOK) {
2248 SvNVX(dstr) = SvNVX(sstr);
2250 if (sflags & SVp_IOK) {
2251 (void)SvIOK_on(dstr);
2252 SvIVX(dstr) = SvIVX(sstr);
2255 if (SvAMAGIC(sstr)) {
2258 #endif /* OVERLOAD */
2260 else if (sflags & SVp_POK) {
2263 * Check to see if we can just swipe the string. If so, it's a
2264 * possible small lose on short strings, but a big win on long ones.
2265 * It might even be a win on short strings if SvPVX(dstr)
2266 * has to be allocated and SvPVX(sstr) has to be freed.
2269 if (SvTEMP(sstr) && /* slated for free anyway? */
2270 SvREFCNT(sstr) == 1 && /* and no other references to it? */
2271 !(sflags & SVf_OOK)) /* and not involved in OOK hack? */
2273 if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */
2275 SvFLAGS(dstr) &= ~SVf_OOK;
2276 Safefree(SvPVX(dstr) - SvIVX(dstr));
2279 Safefree(SvPVX(dstr));
2281 (void)SvPOK_only(dstr);
2282 SvPV_set(dstr, SvPVX(sstr));
2283 SvLEN_set(dstr, SvLEN(sstr));
2284 SvCUR_set(dstr, SvCUR(sstr));
2286 (void)SvOK_off(sstr);
2287 SvPV_set(sstr, Nullch);
2292 else { /* have to copy actual string */
2293 STRLEN len = SvCUR(sstr);
2295 SvGROW(dstr, len + 1); /* inlined from sv_setpvn */
2296 Move(SvPVX(sstr),SvPVX(dstr),len,char);
2297 SvCUR_set(dstr, len);
2298 *SvEND(dstr) = '\0';
2299 (void)SvPOK_only(dstr);
2302 if (sflags & SVp_NOK) {
2304 SvNVX(dstr) = SvNVX(sstr);
2306 if (sflags & SVp_IOK) {
2307 (void)SvIOK_on(dstr);
2308 SvIVX(dstr) = SvIVX(sstr);
2311 else if (sflags & SVp_NOK) {
2312 SvNVX(dstr) = SvNVX(sstr);
2313 (void)SvNOK_only(dstr);
2315 (void)SvIOK_on(dstr);
2316 SvIVX(dstr) = SvIVX(sstr);
2319 else if (sflags & SVp_IOK) {
2320 (void)SvIOK_only(dstr);
2321 SvIVX(dstr) = SvIVX(sstr);
2324 if (dtype == SVt_PVGV) {
2325 if (ckWARN(WARN_UNSAFE))
2326 warner(WARN_UNSAFE, "Undefined value assigned to typeglob");
2329 (void)SvOK_off(dstr);
2335 sv_setsv_mg(SV *dstr, register SV *sstr)
2337 sv_setsv(dstr,sstr);
2342 sv_setpvn(register SV *sv, register const char *ptr, register STRLEN len)
2344 register char *dptr;
2345 assert(len >= 0); /* STRLEN is probably unsigned, so this may
2346 elicit a warning, but it won't hurt. */
2347 SV_CHECK_THINKFIRST(sv);
2352 if (SvTYPE(sv) >= SVt_PV) {
2353 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2357 sv_upgrade(sv, SVt_PV);
2359 SvGROW(sv, len + 1);
2361 Move(ptr,dptr,len,char);
2364 (void)SvPOK_only(sv); /* validate pointer */
2369 sv_setpvn_mg(register SV *sv, register const char *ptr, register STRLEN len)
2371 sv_setpvn(sv,ptr,len);
2376 sv_setpv(register SV *sv, register const char *ptr)
2378 register STRLEN len;
2380 SV_CHECK_THINKFIRST(sv);
2386 if (SvTYPE(sv) >= SVt_PV) {
2387 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2391 sv_upgrade(sv, SVt_PV);
2393 SvGROW(sv, len + 1);
2394 Move(ptr,SvPVX(sv),len+1,char);
2396 (void)SvPOK_only(sv); /* validate pointer */
2401 sv_setpv_mg(register SV *sv, register const char *ptr)
2408 sv_usepvn(register SV *sv, register char *ptr, register STRLEN len)
2410 SV_CHECK_THINKFIRST(sv);
2411 (void)SvUPGRADE(sv, SVt_PV);
2416 (void)SvOOK_off(sv);
2418 Safefree(SvPVX(sv));
2419 Renew(ptr, len+1, char);
2422 SvLEN_set(sv, len+1);
2424 (void)SvPOK_only(sv); /* validate pointer */
2429 sv_usepvn_mg(register SV *sv, register char *ptr, register STRLEN len)
2431 sv_usepvn(sv,ptr,len);
2436 sv_check_thinkfirst(register SV *sv)
2438 if (SvREADONLY(sv)) {
2440 if (PL_curcop != &PL_compiling)
2448 sv_chop(register SV *sv, register char *ptr) /* like set but assuming ptr is in sv */
2452 register STRLEN delta;
2454 if (!ptr || !SvPOKp(sv))
2456 SV_CHECK_THINKFIRST(sv);
2457 if (SvTYPE(sv) < SVt_PVIV)
2458 sv_upgrade(sv,SVt_PVIV);
2462 SvFLAGS(sv) |= SVf_OOK;
2464 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK);
2465 delta = ptr - SvPVX(sv);
2473 sv_catpvn(register SV *sv, register char *ptr, register STRLEN len)
2478 junk = SvPV_force(sv, tlen);
2479 SvGROW(sv, tlen + len + 1);
2482 Move(ptr,SvPVX(sv)+tlen,len,char);
2485 (void)SvPOK_only(sv); /* validate pointer */
2490 sv_catpvn_mg(register SV *sv, register char *ptr, register STRLEN len)
2492 sv_catpvn(sv,ptr,len);
2497 sv_catsv(SV *dstr, register SV *sstr)
2503 if (s = SvPV(sstr, len))
2504 sv_catpvn(dstr,s,len);
2508 sv_catsv_mg(SV *dstr, register SV *sstr)
2510 sv_catsv(dstr,sstr);
2515 sv_catpv(register SV *sv, register char *ptr)
2517 register STRLEN len;
2523 junk = SvPV_force(sv, tlen);
2525 SvGROW(sv, tlen + len + 1);
2528 Move(ptr,SvPVX(sv)+tlen,len+1,char);
2530 (void)SvPOK_only(sv); /* validate pointer */
2535 sv_catpv_mg(register SV *sv, register char *ptr)
2551 sv_upgrade(sv, SVt_PV);
2552 SvGROW(sv, len + 1);
2557 /* name is assumed to contain an SV* if (name && namelen == HEf_SVKEY) */
2560 sv_magic(register SV *sv, SV *obj, int how, char *name, I32 namlen)
2564 if (SvREADONLY(sv)) {
2566 if (PL_curcop != &PL_compiling && !strchr("gBf", how))
2569 if (SvMAGICAL(sv) || (how == 't' && SvTYPE(sv) >= SVt_PVMG)) {
2570 if (SvMAGIC(sv) && (mg = mg_find(sv, how))) {
2577 (void)SvUPGRADE(sv, SVt_PVMG);
2579 Newz(702,mg, 1, MAGIC);
2580 mg->mg_moremagic = SvMAGIC(sv);
2583 if (!obj || obj == sv || how == '#' || how == 'r')
2587 mg->mg_obj = SvREFCNT_inc(obj);
2588 mg->mg_flags |= MGf_REFCOUNTED;
2591 mg->mg_len = namlen;
2594 mg->mg_ptr = savepvn(name, namlen);
2595 else if (namlen == HEf_SVKEY)
2596 mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name);
2600 mg->mg_virtual = &vtbl_sv;
2604 mg->mg_virtual = &vtbl_amagic;
2607 mg->mg_virtual = &vtbl_amagicelem;
2612 #endif /* OVERLOAD */
2614 mg->mg_virtual = &vtbl_bm;
2617 mg->mg_virtual = &vtbl_regdata;
2620 mg->mg_virtual = &vtbl_regdatum;
2623 mg->mg_virtual = &vtbl_env;
2626 mg->mg_virtual = &vtbl_fm;
2629 mg->mg_virtual = &vtbl_envelem;
2632 mg->mg_virtual = &vtbl_mglob;
2635 mg->mg_virtual = &vtbl_isa;
2638 mg->mg_virtual = &vtbl_isaelem;
2641 mg->mg_virtual = &vtbl_nkeys;
2648 mg->mg_virtual = &vtbl_dbline;
2652 mg->mg_virtual = &vtbl_mutex;
2654 #endif /* USE_THREADS */
2655 #ifdef USE_LOCALE_COLLATE
2657 mg->mg_virtual = &vtbl_collxfrm;
2659 #endif /* USE_LOCALE_COLLATE */
2661 mg->mg_virtual = &vtbl_pack;
2665 mg->mg_virtual = &vtbl_packelem;
2668 mg->mg_virtual = &vtbl_regexp;
2671 mg->mg_virtual = &vtbl_sig;
2674 mg->mg_virtual = &vtbl_sigelem;
2677 mg->mg_virtual = &vtbl_taint;
2681 mg->mg_virtual = &vtbl_uvar;
2684 mg->mg_virtual = &vtbl_vec;
2687 mg->mg_virtual = &vtbl_substr;
2690 mg->mg_virtual = &vtbl_defelem;
2693 mg->mg_virtual = &vtbl_glob;
2696 mg->mg_virtual = &vtbl_arylen;
2699 mg->mg_virtual = &vtbl_pos;
2701 case '~': /* Reserved for use by extensions not perl internals. */
2702 /* Useful for attaching extension internal data to perl vars. */
2703 /* Note that multiple extensions may clash if magical scalars */
2704 /* etc holding private data from one are passed to another. */
2708 croak("Don't know how to handle magic of type '%c'", how);
2712 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
2716 sv_unmagic(SV *sv, int type)
2720 if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv))
2723 for (mg = *mgp; mg; mg = *mgp) {
2724 if (mg->mg_type == type) {
2725 MGVTBL* vtbl = mg->mg_virtual;
2726 *mgp = mg->mg_moremagic;
2727 if (vtbl && (vtbl->svt_free != NULL))
2728 (VTBL->svt_free)(sv, mg);
2729 if (mg->mg_ptr && mg->mg_type != 'g')
2730 if (mg->mg_len >= 0)
2731 Safefree(mg->mg_ptr);
2732 else if (mg->mg_len == HEf_SVKEY)
2733 SvREFCNT_dec((SV*)mg->mg_ptr);
2734 if (mg->mg_flags & MGf_REFCOUNTED)
2735 SvREFCNT_dec(mg->mg_obj);
2739 mgp = &mg->mg_moremagic;
2743 SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
2750 sv_insert(SV *bigstr, STRLEN offset, STRLEN len, char *little, STRLEN littlelen)
2754 register char *midend;
2755 register char *bigend;
2761 croak("Can't modify non-existent substring");
2762 SvPV_force(bigstr, curlen);
2763 if (offset + len > curlen) {
2764 SvGROW(bigstr, offset+len+1);
2765 Zero(SvPVX(bigstr)+curlen, offset+len-curlen, char);
2766 SvCUR_set(bigstr, offset+len);
2769 i = littlelen - len;
2770 if (i > 0) { /* string might grow */
2771 big = SvGROW(bigstr, SvCUR(bigstr) + i + 1);
2772 mid = big + offset + len;
2773 midend = bigend = big + SvCUR(bigstr);
2776 while (midend > mid) /* shove everything down */
2777 *--bigend = *--midend;
2778 Move(little,big+offset,littlelen,char);
2784 Move(little,SvPVX(bigstr)+offset,len,char);
2789 big = SvPVX(bigstr);
2792 bigend = big + SvCUR(bigstr);
2794 if (midend > bigend)
2795 croak("panic: sv_insert");
2797 if (mid - big > bigend - midend) { /* faster to shorten from end */
2799 Move(little, mid, littlelen,char);
2802 i = bigend - midend;
2804 Move(midend, mid, i,char);
2808 SvCUR_set(bigstr, mid - big);
2811 else if (i = mid - big) { /* faster from front */
2812 midend -= littlelen;
2814 sv_chop(bigstr,midend-i);
2819 Move(little, mid, littlelen,char);
2821 else if (littlelen) {
2822 midend -= littlelen;
2823 sv_chop(bigstr,midend);
2824 Move(little,midend,littlelen,char);
2827 sv_chop(bigstr,midend);
2832 /* make sv point to what nstr did */
2835 sv_replace(register SV *sv, register SV *nsv)
2837 U32 refcnt = SvREFCNT(sv);
2838 SV_CHECK_THINKFIRST(sv);
2839 if (SvREFCNT(nsv) != 1)
2840 warn("Reference miscount in sv_replace()");
2841 if (SvMAGICAL(sv)) {
2845 sv_upgrade(nsv, SVt_PVMG);
2846 SvMAGIC(nsv) = SvMAGIC(sv);
2847 SvFLAGS(nsv) |= SvMAGICAL(sv);
2853 assert(!SvREFCNT(sv));
2854 StructCopy(nsv,sv,SV);
2855 SvREFCNT(sv) = refcnt;
2856 SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */
2861 sv_clear(register SV *sv)
2865 assert(SvREFCNT(sv) == 0);
2869 if (PL_defstash) { /* Still have a symbol table? */
2874 Zero(&tmpref, 1, SV);
2875 sv_upgrade(&tmpref, SVt_RV);
2877 SvREADONLY_on(&tmpref); /* DESTROY() could be naughty */
2878 SvREFCNT(&tmpref) = 1;
2881 stash = SvSTASH(sv);
2882 destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY");
2885 PUSHSTACKi(PERLSI_DESTROY);
2886 SvRV(&tmpref) = SvREFCNT_inc(sv);
2891 perl_call_sv((SV*)GvCV(destructor),
2892 G_DISCARD|G_EVAL|G_KEEPERR);
2897 } while (SvOBJECT(sv) && SvSTASH(sv) != stash);
2899 del_XRV(SvANY(&tmpref));
2903 SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */
2904 SvOBJECT_off(sv); /* Curse the object. */
2905 if (SvTYPE(sv) != SVt_PVIO)
2906 --PL_sv_objcount; /* XXX Might want something more general */
2909 if (PL_in_clean_objs)
2910 croak("DESTROY created new reference to dead object");
2911 /* DESTROY gave object new lease on life */
2915 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv))
2918 switch (SvTYPE(sv)) {
2921 IoIFP(sv) != PerlIO_stdin() &&
2922 IoIFP(sv) != PerlIO_stdout() &&
2923 IoIFP(sv) != PerlIO_stderr())
2925 Safefree(IoTOP_NAME(sv));
2926 Safefree(IoFMT_NAME(sv));
2927 Safefree(IoBOTTOM_NAME(sv));
2942 SvREFCNT_dec(LvTARG(sv));
2946 Safefree(GvNAME(sv));
2947 /* cannot decrease stash refcount yet, as we might recursively delete
2948 ourselves when the refcnt drops to zero. Delay SvREFCNT_dec
2949 of stash until current sv is completely gone.
2950 -- JohnPC, 27 Mar 1998 */
2951 stash = GvSTASH(sv);
2957 (void)SvOOK_off(sv);
2962 SvREFCNT_dec(SvRV(sv));
2963 else if (SvPVX(sv) && SvLEN(sv))
2964 Safefree(SvPVX(sv));
2974 switch (SvTYPE(sv)) {
2990 del_XPVIV(SvANY(sv));
2993 del_XPVNV(SvANY(sv));
2996 del_XPVMG(SvANY(sv));
2999 del_XPVLV(SvANY(sv));
3002 del_XPVAV(SvANY(sv));
3005 del_XPVHV(SvANY(sv));
3008 del_XPVCV(SvANY(sv));
3011 del_XPVGV(SvANY(sv));
3012 /* code duplication for increased performance. */
3013 SvFLAGS(sv) &= SVf_BREAK;
3014 SvFLAGS(sv) |= SVTYPEMASK;
3015 /* decrease refcount of the stash that owns this GV, if any */
3017 SvREFCNT_dec(stash);
3018 return; /* not break, SvFLAGS reset already happened */
3020 del_XPVBM(SvANY(sv));
3023 del_XPVFM(SvANY(sv));
3026 del_XPVIO(SvANY(sv));
3029 SvFLAGS(sv) &= SVf_BREAK;
3030 SvFLAGS(sv) |= SVTYPEMASK;
3037 ATOMIC_INC(SvREFCNT(sv));
3044 int refcount_is_zero;
3048 if (SvREFCNT(sv) == 0) {
3049 if (SvFLAGS(sv) & SVf_BREAK)
3051 if (PL_in_clean_all) /* All is fair */
3053 if (SvREADONLY(sv) && SvIMMORTAL(sv)) {
3054 /* make sure SvREFCNT(sv)==0 happens very seldom */
3055 SvREFCNT(sv) = (~(U32)0)/2;
3058 warn("Attempt to free unreferenced scalar");
3061 ATOMIC_DEC_AND_TEST(refcount_is_zero, SvREFCNT(sv));
3062 if (!refcount_is_zero)
3066 warn("Attempt to free temp prematurely: SV 0x%lx", (unsigned long)sv);
3070 if (SvREADONLY(sv) && SvIMMORTAL(sv)) {
3071 /* make sure SvREFCNT(sv)==0 happens very seldom */
3072 SvREFCNT(sv) = (~(U32)0)/2;
3081 sv_len(register SV *sv)
3090 len = mg_length(sv);
3092 junk = SvPV(sv, len);
3097 sv_len_utf8(register SV *sv)
3108 len = mg_length(sv);
3111 s = (U8*)SvPV(sv, len);
3122 sv_pos_u2b(register SV *sv, I32* offsetp, I32* lenp)
3127 I32 uoffset = *offsetp;
3133 start = s = (U8*)SvPV(sv, len);
3135 while (s < send && uoffset--)
3139 *offsetp = s - start;
3143 while (s < send && ulen--)
3153 sv_pos_b2u(register SV *sv, I32* offsetp)
3162 s = (U8*)SvPV(sv, len);
3164 croak("panic: bad byte offset");
3165 send = s + *offsetp;
3172 warn("Malformed UTF-8 character");
3180 sv_eq(register SV *str1, register SV *str2)
3192 pv1 = SvPV(str1, cur1);
3197 pv2 = SvPV(str2, cur2);
3202 return memEQ(pv1, pv2, cur1);
3206 sv_cmp(register SV *str1, register SV *str2)
3209 char *pv1 = str1 ? SvPV(str1, cur1) : (char *) NULL;
3211 char *pv2 = str2 ? SvPV(str2, cur2) : (char *) NULL;
3215 return cur2 ? -1 : 0;
3220 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2);
3223 return retval < 0 ? -1 : 1;
3228 return cur1 < cur2 ? -1 : 1;
3232 sv_cmp_locale(register SV *sv1, register SV *sv2)
3234 #ifdef USE_LOCALE_COLLATE
3240 if (PL_collation_standard)
3244 pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL;
3246 pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL;
3248 if (!pv1 || !len1) {
3259 retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2);
3262 return retval < 0 ? -1 : 1;
3265 * When the result of collation is equality, that doesn't mean
3266 * that there are no differences -- some locales exclude some
3267 * characters from consideration. So to avoid false equalities,
3268 * we use the raw string as a tiebreaker.
3274 #endif /* USE_LOCALE_COLLATE */
3276 return sv_cmp(sv1, sv2);
3279 #ifdef USE_LOCALE_COLLATE
3281 * Any scalar variable may carry an 'o' magic that contains the
3282 * scalar data of the variable transformed to such a format that
3283 * a normal memory comparison can be used to compare the data
3284 * according to the locale settings.
3287 sv_collxfrm(SV *sv, STRLEN *nxp)
3291 mg = SvMAGICAL(sv) ? mg_find(sv, 'o') : (MAGIC *) NULL;
3292 if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != PL_collation_ix) {
3297 Safefree(mg->mg_ptr);
3299 if ((xf = mem_collxfrm(s, len, &xlen))) {
3300 if (SvREADONLY(sv)) {
3303 return xf + sizeof(PL_collation_ix);
3306 sv_magic(sv, 0, 'o', 0, 0);
3307 mg = mg_find(sv, 'o');
3320 if (mg && mg->mg_ptr) {
3322 return mg->mg_ptr + sizeof(PL_collation_ix);
3330 #endif /* USE_LOCALE_COLLATE */
3333 sv_gets(register SV *sv, register PerlIO *fp, I32 append)
3338 register STDCHAR rslast;
3339 register STDCHAR *bp;
3343 SV_CHECK_THINKFIRST(sv);
3344 (void)SvUPGRADE(sv, SVt_PV);
3347 if (RsSNARF(PL_rs)) {
3351 else if (RsRECORD(PL_rs)) {
3352 I32 recsize, bytesread;
3355 /* Grab the size of the record we're getting */
3356 recsize = SvIV(SvRV(PL_rs));
3357 (void)SvPOK_only(sv); /* Validate pointer */
3358 buffer = SvGROW(sv, recsize + 1);
3361 /* VMS wants read instead of fread, because fread doesn't respect */
3362 /* RMS record boundaries. This is not necessarily a good thing to be */
3363 /* doing, but we've got no other real choice */
3364 bytesread = PerlLIO_read(PerlIO_fileno(fp), buffer, recsize);
3366 bytesread = PerlIO_read(fp, buffer, recsize);
3368 SvCUR_set(sv, bytesread);
3369 buffer[bytesread] = '\0';
3370 return(SvCUR(sv) ? SvPVX(sv) : Nullch);
3372 else if (RsPARA(PL_rs)) {
3377 rsptr = SvPV(PL_rs, rslen);
3378 rslast = rslen ? rsptr[rslen - 1] : '\0';
3380 if (RsPARA(PL_rs)) { /* have to do this both before and after */
3381 do { /* to make sure file boundaries work right */
3384 i = PerlIO_getc(fp);
3388 PerlIO_ungetc(fp,i);
3394 /* See if we know enough about I/O mechanism to cheat it ! */
3396 /* This used to be #ifdef test - it is made run-time test for ease
3397 of abstracting out stdio interface. One call should be cheap
3398 enough here - and may even be a macro allowing compile
3402 if (PerlIO_fast_gets(fp)) {
3405 * We're going to steal some values from the stdio struct
3406 * and put EVERYTHING in the innermost loop into registers.
3408 register STDCHAR *ptr;
3412 #if defined(VMS) && defined(PERLIO_IS_STDIO)
3413 /* An ungetc()d char is handled separately from the regular
3414 * buffer, so we getc() it back out and stuff it in the buffer.
3416 i = PerlIO_getc(fp);
3417 if (i == EOF) return 0;
3418 *(--((*fp)->_ptr)) = (unsigned char) i;
3422 /* Here is some breathtakingly efficient cheating */
3424 cnt = PerlIO_get_cnt(fp); /* get count into register */
3425 (void)SvPOK_only(sv); /* validate pointer */
3426 if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */
3427 if (cnt > 80 && SvLEN(sv) > append) {
3428 shortbuffered = cnt - SvLEN(sv) + append + 1;
3429 cnt -= shortbuffered;
3433 /* remember that cnt can be negative */
3434 SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1)));
3439 bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */
3440 ptr = (STDCHAR*)PerlIO_get_ptr(fp);
3441 DEBUG_P(PerlIO_printf(Perl_debug_log,
3442 "Screamer: entering, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3443 DEBUG_P(PerlIO_printf(Perl_debug_log,
3444 "Screamer: entering: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3445 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3446 (long)(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0)));
3451 while (cnt > 0) { /* this | eat */
3453 if ((*bp++ = *ptr++) == rslast) /* really | dust */
3454 goto thats_all_folks; /* screams | sed :-) */
3458 Copy(ptr, bp, cnt, char); /* this | eat */
3459 bp += cnt; /* screams | dust */
3460 ptr += cnt; /* louder | sed :-) */
3465 if (shortbuffered) { /* oh well, must extend */
3466 cnt = shortbuffered;
3468 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3470 SvGROW(sv, SvLEN(sv) + append + cnt + 2);
3471 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3475 DEBUG_P(PerlIO_printf(Perl_debug_log,
3476 "Screamer: going to getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3477 PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */
3478 DEBUG_P(PerlIO_printf(Perl_debug_log,
3479 "Screamer: pre: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3480 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3481 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3482 /* This used to call 'filbuf' in stdio form, but as that behaves like
3483 getc when cnt <= 0 we use PerlIO_getc here to avoid introducing
3484 another abstraction. */
3485 i = PerlIO_getc(fp); /* get more characters */
3486 DEBUG_P(PerlIO_printf(Perl_debug_log,
3487 "Screamer: post: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3488 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3489 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3490 cnt = PerlIO_get_cnt(fp);
3491 ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */
3492 DEBUG_P(PerlIO_printf(Perl_debug_log,
3493 "Screamer: after getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3495 if (i == EOF) /* all done for ever? */
3496 goto thats_really_all_folks;
3498 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3500 SvGROW(sv, bpx + cnt + 2);
3501 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3503 *bp++ = i; /* store character from PerlIO_getc */
3505 if (rslen && (STDCHAR)i == rslast) /* all done for now? */
3506 goto thats_all_folks;
3510 if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) ||
3511 memNE((char*)bp - rslen, rsptr, rslen))
3512 goto screamer; /* go back to the fray */
3513 thats_really_all_folks:
3515 cnt += shortbuffered;
3516 DEBUG_P(PerlIO_printf(Perl_debug_log,
3517 "Screamer: quitting, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3518 PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */
3519 DEBUG_P(PerlIO_printf(Perl_debug_log,
3520 "Screamer: end: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3521 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3522 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3524 SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */
3525 DEBUG_P(PerlIO_printf(Perl_debug_log,
3526 "Screamer: done, len=%ld, string=|%.*s|\n",
3527 (long)SvCUR(sv),(int)SvCUR(sv),SvPVX(sv)));
3531 /*The big, slow, and stupid way */
3536 register STDCHAR *bpe = buf + sizeof(buf);
3538 while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe)
3539 ; /* keep reading */
3543 cnt = PerlIO_read(fp,(char*)buf, sizeof(buf));
3544 /* Accomodate broken VAXC compiler, which applies U8 cast to
3545 * both args of ?: operator, causing EOF to change into 255
3547 if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; }
3551 sv_catpvn(sv, (char *) buf, cnt);
3553 sv_setpvn(sv, (char *) buf, cnt);
3555 if (i != EOF && /* joy */
3557 SvCUR(sv) < rslen ||
3558 memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen)))
3562 * If we're reading from a TTY and we get a short read,
3563 * indicating that the user hit his EOF character, we need
3564 * to notice it now, because if we try to read from the TTY
3565 * again, the EOF condition will disappear.
3567 * The comparison of cnt to sizeof(buf) is an optimization
3568 * that prevents unnecessary calls to feof().
3572 if (!(cnt < sizeof(buf) && PerlIO_eof(fp)))
3577 if (RsPARA(PL_rs)) { /* have to do this both before and after */
3578 while (i != EOF) { /* to make sure file boundaries work right */
3579 i = PerlIO_getc(fp);
3581 PerlIO_ungetc(fp,i);
3588 win32_strip_return(sv);
3591 return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch;
3596 sv_inc(register SV *sv)
3603 if (SvTHINKFIRST(sv)) {
3604 if (SvREADONLY(sv)) {
3606 if (PL_curcop != &PL_compiling)
3612 if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return;
3613 #endif /* OVERLOAD */
3621 flags = SvFLAGS(sv);
3622 if (flags & SVp_NOK) {
3623 (void)SvNOK_only(sv);
3627 if (flags & SVp_IOK) {
3628 if (SvIVX(sv) == IV_MAX)
3629 sv_setnv(sv, (double)IV_MAX + 1.0);
3631 (void)SvIOK_only(sv);
3636 if (!(flags & SVp_POK) || !*SvPVX(sv)) {
3637 if ((flags & SVTYPEMASK) < SVt_PVNV)
3638 sv_upgrade(sv, SVt_NV);
3640 (void)SvNOK_only(sv);
3644 while (isALPHA(*d)) d++;
3645 while (isDIGIT(*d)) d++;
3647 SET_NUMERIC_STANDARD();
3648 sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */
3652 while (d >= SvPVX(sv)) {
3660 /* MKS: The original code here died if letters weren't consecutive.
3661 * at least it didn't have to worry about non-C locales. The
3662 * new code assumes that ('z'-'a')==('Z'-'A'), letters are
3663 * arranged in order (although not consecutively) and that only
3664 * [A-Za-z] are accepted by isALPHA in the C locale.
3666 if (*d != 'z' && *d != 'Z') {
3667 do { ++*d; } while (!isALPHA(*d));
3670 *(d--) -= 'z' - 'a';
3675 *(d--) -= 'z' - 'a' + 1;
3679 /* oh,oh, the number grew */
3680 SvGROW(sv, SvCUR(sv) + 2);
3682 for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--)
3691 sv_dec(register SV *sv)
3697 if (SvTHINKFIRST(sv)) {
3698 if (SvREADONLY(sv)) {
3700 if (PL_curcop != &PL_compiling)
3706 if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return;
3707 #endif /* OVERLOAD */
3715 flags = SvFLAGS(sv);
3716 if (flags & SVp_NOK) {
3718 (void)SvNOK_only(sv);
3721 if (flags & SVp_IOK) {
3722 if (SvIVX(sv) == IV_MIN)
3723 sv_setnv(sv, (double)IV_MIN - 1.0);
3725 (void)SvIOK_only(sv);
3730 if (!(flags & SVp_POK)) {
3731 if ((flags & SVTYPEMASK) < SVt_PVNV)
3732 sv_upgrade(sv, SVt_NV);
3734 (void)SvNOK_only(sv);
3737 SET_NUMERIC_STANDARD();
3738 sv_setnv(sv,atof(SvPVX(sv)) - 1.0); /* punt */
3741 /* Make a string that will exist for the duration of the expression
3742 * evaluation. Actually, it may have to last longer than that, but
3743 * hopefully we won't free it until it has been assigned to a
3744 * permanent location. */
3750 PL_tmps_max += (PL_tmps_max < 512) ? 128 : 512;
3751 Renew(PL_tmps_stack, PL_tmps_max, SV*);
3755 sv_mortalcopy(SV *oldstr)
3764 sv_setsv(sv,oldstr);
3765 if (++PL_tmps_ix >= PL_tmps_max)
3767 PL_tmps_stack[PL_tmps_ix] = sv;
3781 SvFLAGS(sv) = SVs_TEMP;
3782 if (++PL_tmps_ix >= PL_tmps_max)
3784 PL_tmps_stack[PL_tmps_ix] = sv;
3788 /* same thing without the copying */
3791 sv_2mortal(register SV *sv)
3796 if (SvREADONLY(sv) && SvIMMORTAL(sv))
3798 if (++PL_tmps_ix >= PL_tmps_max)
3800 PL_tmps_stack[PL_tmps_ix] = sv;
3806 newSVpv(char *s, STRLEN len)
3816 sv_setpvn(sv,s,len);
3821 newSVpvn(char *s, STRLEN len)
3829 sv_setpvn(sv,s,len);
3834 newSVpvf(const char* pat, ...)
3843 va_start(args, pat);
3844 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
3877 newRV_noinc(SV *tmpRef)
3886 sv_upgrade(sv, SVt_RV);
3896 return newRV_noinc(SvREFCNT_inc(tmpRef));
3899 /* make an exact duplicate of old */
3902 newSVsv(register SV *old)
3908 if (SvTYPE(old) == SVTYPEMASK) {
3909 warn("semi-panic: attempt to dup freed string");
3927 sv_reset(register char *s, HV *stash)
3940 if (!*s) { /* reset ?? searches */
3941 for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) {
3942 pm->op_pmdynflags &= ~PMdf_USED;
3947 /* reset variables */
3949 if (!HvARRAY(stash))
3952 Zero(todo, 256, char);
3959 for ( ; i <= max; i++) {
3962 for (i = 0; i <= (I32) HvMAX(stash); i++) {
3963 for (entry = HvARRAY(stash)[i];
3965 entry = HeNEXT(entry))
3967 if (!todo[(U8)*HeKEY(entry)])
3969 gv = (GV*)HeVAL(entry);
3971 if (SvTHINKFIRST(sv)) {
3972 if (!SvREADONLY(sv) && SvROK(sv))
3977 if (SvTYPE(sv) >= SVt_PV) {
3979 if (SvPVX(sv) != Nullch)
3986 if (GvHV(gv) && !HvNAME(GvHV(gv))) {
3988 #ifndef VMS /* VMS has no environ array */
3990 environ[0] = Nullch;
4004 switch (SvTYPE(sv)) {
4012 croak("Bad filehandle: %s", GvNAME(gv));
4016 croak(no_usym, "filehandle");
4018 return sv_2io(SvRV(sv));
4019 gv = gv_fetchpv(SvPV(sv,PL_na), FALSE, SVt_PVIO);
4025 croak("Bad filehandle: %s", SvPV(sv,PL_na));
4032 sv_2cv(SV *sv, HV **st, GV **gvp, I32 lref)
4038 return *gvp = Nullgv, Nullcv;
4039 switch (SvTYPE(sv)) {
4059 if (SvTYPE(cv) != SVt_PVCV)
4060 croak("Not a subroutine reference");
4068 gv = gv_fetchpv(SvPV(sv, PL_na), lref, SVt_PVCV);
4074 if (lref && !GvCVu(gv)) {
4077 tmpsv = NEWSV(704,0);
4078 gv_efullname3(tmpsv, gv, Nullch);
4079 newSUB(start_subparse(FALSE, 0),
4080 newSVOP(OP_CONST, 0, tmpsv),
4085 croak("Unable to create sub named \"%s\"", SvPV(sv,PL_na));
4092 sv_true(register SV *sv)
4099 if ((tXpv = (XPV*)SvANY(sv)) &&
4100 (*tXpv->xpv_pv > '0' ||
4101 tXpv->xpv_cur > 1 ||
4102 (tXpv->xpv_cur && *tXpv->xpv_pv != '0')))
4109 return SvIVX(sv) != 0;
4112 return SvNVX(sv) != 0.0;
4114 return sv_2bool(sv);
4120 sv_iv(register SV *sv)
4128 sv_uv(register SV *sv)
4136 sv_nv(register SV *sv)
4144 sv_pvn(SV *sv, STRLEN *lp)
4150 return sv_2pv(sv, lp);
4154 sv_pvn_force(SV *sv, STRLEN *lp)
4158 if (SvREADONLY(sv)) {
4160 if (PL_curcop != &PL_compiling)
4168 if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) {
4169 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) {
4176 croak("Can't coerce %s to string in %s", sv_reftype(sv,0),
4177 op_name[PL_op->op_type]);
4182 if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */
4187 (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */
4188 SvGROW(sv, len + 1);
4189 Move(s,SvPVX(sv),len,char);
4194 SvPOK_on(sv); /* validate pointer */
4196 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",
4197 (unsigned long)sv,SvPVX(sv)));
4204 sv_reftype(SV *sv, int ob)
4206 if (ob && SvOBJECT(sv))
4207 return HvNAME(SvSTASH(sv));
4209 switch (SvTYPE(sv)) {
4223 case SVt_PVLV: return "LVALUE";
4224 case SVt_PVAV: return "ARRAY";
4225 case SVt_PVHV: return "HASH";
4226 case SVt_PVCV: return "CODE";
4227 case SVt_PVGV: return "GLOB";
4228 case SVt_PVFM: return "FORMAT";
4229 default: return "UNKNOWN";
4250 sv_isa(SV *sv, char *name)
4262 return strEQ(HvNAME(SvSTASH(sv)), name);
4266 newSVrv(SV *rv, char *classname)
4276 SV_CHECK_THINKFIRST(rv);
4279 #endif /* OVERLOAD */
4281 if (SvTYPE(rv) < SVt_RV)
4282 sv_upgrade(rv, SVt_RV);
4285 SvRV(rv) = SvREFCNT_inc(sv);
4289 HV* stash = gv_stashpv(classname, TRUE);
4290 (void)sv_bless(rv, stash);
4296 sv_setref_pv(SV *rv, char *classname, void *pv)
4299 sv_setsv(rv, &PL_sv_undef);
4303 sv_setiv(newSVrv(rv,classname), (IV)pv);
4308 sv_setref_iv(SV *rv, char *classname, IV iv)
4310 sv_setiv(newSVrv(rv,classname), iv);
4315 sv_setref_nv(SV *rv, char *classname, double nv)
4317 sv_setnv(newSVrv(rv,classname), nv);
4322 sv_setref_pvn(SV *rv, char *classname, char *pv, I32 n)
4324 sv_setpvn(newSVrv(rv,classname), pv, n);
4329 sv_bless(SV *sv, HV *stash)
4334 croak("Can't bless non-reference value");
4336 if (SvFLAGS(tmpRef) & (SVs_OBJECT|SVf_READONLY)) {
4337 if (SvREADONLY(tmpRef))
4339 if (SvOBJECT(tmpRef)) {
4340 if (SvTYPE(tmpRef) != SVt_PVIO)
4342 SvREFCNT_dec(SvSTASH(tmpRef));
4345 SvOBJECT_on(tmpRef);
4346 if (SvTYPE(tmpRef) != SVt_PVIO)
4348 (void)SvUPGRADE(tmpRef, SVt_PVMG);
4349 SvSTASH(tmpRef) = (HV*)SvREFCNT_inc(stash);
4356 #endif /* OVERLOAD */
4364 assert(SvTYPE(sv) == SVt_PVGV);
4369 SvREFCNT_dec(GvSTASH(sv));
4370 GvSTASH(sv) = Nullhv;
4372 sv_unmagic(sv, '*');
4373 Safefree(GvNAME(sv));
4375 SvFLAGS(sv) &= ~SVTYPEMASK;
4376 SvFLAGS(sv) |= SVt_PVMG;
4386 if (SvREFCNT(rv) != 1 || SvREADONLY(rv))
4389 sv_2mortal(rv); /* Schedule for freeing later */
4395 sv_magic((sv), Nullsv, 't', Nullch, 0);
4401 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4402 MAGIC *mg = mg_find(sv, 't');
4411 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4412 MAGIC *mg = mg_find(sv, 't');
4413 if (mg && ((mg->mg_len & 1) || (mg->mg_len & 2) && mg->mg_obj == sv))
4420 sv_setpviv(SV *sv, IV iv)
4423 char buf[TYPE_DIGITS(UV)];
4424 char *ptr = buf + sizeof(buf);
4429 sv_setpvn(sv, "", 0);
4438 *--ptr = '0' + (uv % 10);
4440 len = (buf + sizeof(buf)) - ptr;
4441 /* taking advantage of SvCUR(sv) == 0 */
4442 SvGROW(sv, sign + len + 1);
4446 memcpy(p, ptr, len);
4449 SvCUR(sv) = p - SvPVX(sv);
4454 sv_setpviv_mg(SV *sv, IV iv)
4461 sv_setpvf(SV *sv, const char* pat, ...)
4464 va_start(args, pat);
4465 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4471 sv_setpvf_mg(SV *sv, const char* pat, ...)
4474 va_start(args, pat);
4475 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4481 sv_catpvf(SV *sv, const char* pat, ...)
4484 va_start(args, pat);
4485 sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4490 sv_catpvf_mg(SV *sv, const char* pat, ...)
4493 va_start(args, pat);
4494 sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4500 sv_vsetpvfn(SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *used_locale)
4502 sv_setpvn(sv, "", 0);
4503 sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale);
4507 sv_vcatpvfn(SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *used_locale)
4515 static char nullstr[] = "(null)";
4517 /* no matter what, this is a string now */
4518 (void)SvPV_force(sv, origlen);
4520 /* special-case "", "%s", and "%_" */
4523 if (patlen == 2 && pat[0] == '%') {
4527 char *s = va_arg(*args, char*);
4528 sv_catpv(sv, s ? s : nullstr);
4530 else if (svix < svmax)
4531 sv_catsv(sv, *svargs);
4535 sv_catsv(sv, va_arg(*args, SV*));
4538 /* See comment on '_' below */
4543 patend = (char*)pat + patlen;
4544 for (p = (char*)pat; p < patend; p = q) {
4552 bool has_precis = FALSE;
4557 STRLEN esignlen = 0;
4559 char *eptr = Nullch;
4561 char ebuf[TYPE_DIGITS(int) * 2 + 16]; /* large enough for "%#.#f" */
4563 static char *efloatbuf = Nullch;
4564 static STRLEN efloatsize = 0;
4576 for (q = p; q < patend && *q != '%'; ++q) ;
4578 sv_catpvn(sv, p, q - p);
4616 case '1': case '2': case '3':
4617 case '4': case '5': case '6':
4618 case '7': case '8': case '9':
4621 width = width * 10 + (*q++ - '0');
4626 i = va_arg(*args, int);
4628 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4630 width = (i < 0) ? -i : i;
4641 i = va_arg(*args, int);
4643 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4644 precis = (i < 0) ? 0 : i;
4650 precis = precis * 10 + (*q++ - '0');
4659 #if 0 /* when quads have better support within Perl */
4660 if (*(q + 1) == 'l') {
4687 uv = va_arg(*args, int);
4689 uv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4691 eptr = (char*)utf8buf;
4692 elen = uv_to_utf8((U8*)eptr, uv) - utf8buf;
4696 c = va_arg(*args, int);
4698 c = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4705 eptr = va_arg(*args, char*);
4707 elen = strlen(eptr);
4710 elen = sizeof nullstr - 1;
4713 else if (svix < svmax) {
4714 eptr = SvPVx(svargs[svix++], elen);
4716 if (has_precis && precis < elen) {
4718 sv_pos_u2b(svargs[svix - 1], &p, 0); /* sticks at end */
4721 if (width) { /* fudge width (can't fudge elen) */
4722 width += elen - sv_len_utf8(svargs[svix - 1]);
4730 * The "%_" hack might have to be changed someday,
4731 * if ISO or ANSI decide to use '_' for something.
4732 * So we keep it hidden from users' code.
4736 eptr = SvPVx(va_arg(*args, SV*), elen);
4739 if (has_precis && elen > precis)
4747 uv = (UV)va_arg(*args, void*);
4749 uv = (svix < svmax) ? (UV)svargs[svix++] : 0;
4760 case 'h': iv = (short)va_arg(*args, int); break;
4761 default: iv = va_arg(*args, int); break;
4762 case 'l': iv = va_arg(*args, long); break;
4763 case 'V': iv = va_arg(*args, IV); break;
4767 iv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4769 case 'h': iv = (short)iv; break;
4770 default: iv = (int)iv; break;
4771 case 'l': iv = (long)iv; break;
4778 esignbuf[esignlen++] = plus;
4782 esignbuf[esignlen++] = '-';
4808 case 'h': uv = (unsigned short)va_arg(*args, unsigned); break;
4809 default: uv = va_arg(*args, unsigned); break;
4810 case 'l': uv = va_arg(*args, unsigned long); break;
4811 case 'V': uv = va_arg(*args, UV); break;
4815 uv = (svix < svmax) ? SvUVx(svargs[svix++]) : 0;
4817 case 'h': uv = (unsigned short)uv; break;
4818 default: uv = (unsigned)uv; break;
4819 case 'l': uv = (unsigned long)uv; break;
4825 eptr = ebuf + sizeof ebuf;
4831 p = (c == 'X') ? "0123456789ABCDEF" : "0123456789abcdef";
4837 esignbuf[esignlen++] = '0';
4838 esignbuf[esignlen++] = c; /* 'x' or 'X' */
4844 *--eptr = '0' + dig;
4846 if (alt && *eptr != '0')
4849 default: /* it had better be ten or less */
4852 *--eptr = '0' + dig;
4853 } while (uv /= base);
4856 elen = (ebuf + sizeof ebuf) - eptr;
4859 zeros = precis - elen;
4860 else if (precis == 0 && elen == 1 && *eptr == '0')
4865 /* FLOATING POINT */
4868 c = 'f'; /* maybe %F isn't supported here */
4874 /* This is evil, but floating point is even more evil */
4877 nv = va_arg(*args, double);
4879 nv = (svix < svmax) ? SvNVx(svargs[svix++]) : 0.0;
4882 if (c != 'e' && c != 'E') {
4884 (void)frexp(nv, &i);
4885 if (i == PERL_INT_MIN)
4886 die("panic: frexp");
4888 need = BIT_DIGITS(i);
4890 need += has_precis ? precis : 6; /* known default */
4894 need += 20; /* fudge factor */
4895 if (efloatsize < need) {
4896 Safefree(efloatbuf);
4897 efloatsize = need + 20; /* more fudge */
4898 New(906, efloatbuf, efloatsize, char);
4901 eptr = ebuf + sizeof ebuf;
4906 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4911 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4923 (void)sprintf(efloatbuf, eptr, nv);
4926 elen = strlen(efloatbuf);
4930 * User-defined locales may include arbitrary characters.
4931 * And, unfortunately, some system may alloc the "C" locale
4932 * to be overridden by a malicious user.
4935 *used_locale = TRUE;
4936 #endif /* LC_NUMERIC */
4943 i = SvCUR(sv) - origlen;
4946 case 'h': *(va_arg(*args, short*)) = i; break;
4947 default: *(va_arg(*args, int*)) = i; break;
4948 case 'l': *(va_arg(*args, long*)) = i; break;
4949 case 'V': *(va_arg(*args, IV*)) = i; break;
4952 else if (svix < svmax)
4953 sv_setuv(svargs[svix++], (UV)i);
4954 continue; /* not "break" */
4960 if (!args && ckWARN(WARN_PRINTF) &&
4961 (PL_op->op_type == OP_PRTF || PL_op->op_type == OP_SPRINTF)) {
4962 SV *msg = sv_newmortal();
4963 sv_setpvf(msg, "Invalid conversion in %s: ",
4964 (PL_op->op_type == OP_PRTF) ? "printf" : "sprintf");
4966 sv_catpvf(msg, isPRINT(c) ? "\"%%%c\"" : "\"%%\\%03o\"",
4969 sv_catpv(msg, "end of string");
4970 warner(WARN_PRINTF, "%_", msg); /* yes, this is reentrant */
4973 /* output mangled stuff ... */
4979 /* ... right here, because formatting flags should not apply */
4980 SvGROW(sv, SvCUR(sv) + elen + 1);
4982 memcpy(p, eptr, elen);
4985 SvCUR(sv) = p - SvPVX(sv);
4986 continue; /* not "break" */
4989 have = esignlen + zeros + elen;
4990 need = (have > width ? have : width);
4993 SvGROW(sv, SvCUR(sv) + need + 1);
4995 if (esignlen && fill == '0') {
4996 for (i = 0; i < esignlen; i++)
5000 memset(p, fill, gap);
5003 if (esignlen && fill != '0') {
5004 for (i = 0; i < esignlen; i++)
5008 for (i = zeros; i; i--)
5012 memcpy(p, eptr, elen);
5016 memset(p, ' ', gap);
5020 SvCUR(sv) = p - SvPVX(sv);
5028 SV *d = sv_newmortal();
5034 PerlIO_printf(Perl_debug_log, "SV = 0\n");
5038 flags = SvFLAGS(sv);
5041 sv_setpvf(d, "(0x%lx)\n REFCNT = %ld\n FLAGS = (",
5042 (unsigned long)SvANY(sv), (long)SvREFCNT(sv));
5043 if (flags & SVs_PADBUSY) sv_catpv(d, "PADBUSY,");
5044 if (flags & SVs_PADTMP) sv_catpv(d, "PADTMP,");
5045 if (flags & SVs_PADMY) sv_catpv(d, "PADMY,");
5046 if (flags & SVs_TEMP) sv_catpv(d, "TEMP,");
5047 if (flags & SVs_OBJECT) sv_catpv(d, "OBJECT,");
5048 if (flags & SVs_GMG) sv_catpv(d, "GMG,");
5049 if (flags & SVs_SMG) sv_catpv(d, "SMG,");
5050 if (flags & SVs_RMG) sv_catpv(d, "RMG,");
5052 if (flags & SVf_IOK) sv_catpv(d, "IOK,");
5053 if (flags & SVf_NOK) sv_catpv(d, "NOK,");
5054 if (flags & SVf_POK) sv_catpv(d, "POK,");
5055 if (flags & SVf_ROK) sv_catpv(d, "ROK,");
5056 if (flags & SVf_OOK) sv_catpv(d, "OOK,");
5057 if (flags & SVf_FAKE) sv_catpv(d, "FAKE,");
5058 if (flags & SVf_READONLY) sv_catpv(d, "READONLY,");
5061 if (flags & SVf_AMAGIC) sv_catpv(d, "OVERLOAD,");
5062 #endif /* OVERLOAD */
5063 if (flags & SVp_IOK) sv_catpv(d, "pIOK,");
5064 if (flags & SVp_NOK) sv_catpv(d, "pNOK,");
5065 if (flags & SVp_POK) sv_catpv(d, "pPOK,");
5066 if (flags & SVp_SCREAM) sv_catpv(d, "SCREAM,");
5071 if (CvANON(sv)) sv_catpv(d, "ANON,");
5072 if (CvUNIQUE(sv)) sv_catpv(d, "UNIQUE,");
5073 if (CvCLONE(sv)) sv_catpv(d, "CLONE,");
5074 if (CvCLONED(sv)) sv_catpv(d, "CLONED,");
5075 if (CvNODEBUG(sv)) sv_catpv(d, "NODEBUG,");
5078 if (HvSHAREKEYS(sv)) sv_catpv(d, "SHAREKEYS,");
5079 if (HvLAZYDEL(sv)) sv_catpv(d, "LAZYDEL,");
5082 if (GvINTRO(sv)) sv_catpv(d, "INTRO,");
5083 if (GvMULTI(sv)) sv_catpv(d, "MULTI,");
5084 if (GvASSUMECV(sv)) sv_catpv(d, "ASSUMECV,");
5085 if (GvIMPORTED(sv)) {
5086 sv_catpv(d, "IMPORT");
5087 if (GvIMPORTED(sv) == GVf_IMPORTED)
5088 sv_catpv(d, "ALL,");
5091 if (GvIMPORTED_SV(sv)) sv_catpv(d, " SV");
5092 if (GvIMPORTED_AV(sv)) sv_catpv(d, " AV");
5093 if (GvIMPORTED_HV(sv)) sv_catpv(d, " HV");
5094 if (GvIMPORTED_CV(sv)) sv_catpv(d, " CV");
5099 if (SvTAIL(sv)) sv_catpv(d, "TAIL,");
5100 if (SvCOMPILED(sv)) sv_catpv(d, "COMPILED,");
5104 if (*(SvEND(d) - 1) == ',')
5105 SvPVX(d)[--SvCUR(d)] = '\0';
5109 PerlIO_printf(Perl_debug_log, "SV = ");
5112 PerlIO_printf(Perl_debug_log, "NULL%s\n", s);
5115 PerlIO_printf(Perl_debug_log, "IV%s\n", s);
5118 PerlIO_printf(Perl_debug_log, "NV%s\n", s);
5121 PerlIO_printf(Perl_debug_log, "RV%s\n", s);
5124 PerlIO_printf(Perl_debug_log, "PV%s\n", s);
5127 PerlIO_printf(Perl_debug_log, "PVIV%s\n", s);
5130 PerlIO_printf(Perl_debug_log, "PVNV%s\n", s);
5133 PerlIO_printf(Perl_debug_log, "PVBM%s\n", s);
5136 PerlIO_printf(Perl_debug_log, "PVMG%s\n", s);
5139 PerlIO_printf(Perl_debug_log, "PVLV%s\n", s);
5142 PerlIO_printf(Perl_debug_log, "PVAV%s\n", s);
5145 PerlIO_printf(Perl_debug_log, "PVHV%s\n", s);
5148 PerlIO_printf(Perl_debug_log, "PVCV%s\n", s);
5151 PerlIO_printf(Perl_debug_log, "PVGV%s\n", s);
5154 PerlIO_printf(Perl_debug_log, "PVFM%s\n", s);
5157 PerlIO_printf(Perl_debug_log, "PVIO%s\n", s);
5160 PerlIO_printf(Perl_debug_log, "UNKNOWN%s\n", s);
5163 if (type >= SVt_PVIV || type == SVt_IV)
5164 PerlIO_printf(Perl_debug_log, " IV = %ld\n", (long)SvIVX(sv));
5165 if (type >= SVt_PVNV || type == SVt_NV) {
5166 SET_NUMERIC_STANDARD();
5167 PerlIO_printf(Perl_debug_log, " NV = %.*g\n", DBL_DIG, SvNVX(sv));
5170 PerlIO_printf(Perl_debug_log, " RV = 0x%lx\n", (long)SvRV(sv));
5176 if (type <= SVt_PVLV) {
5178 PerlIO_printf(Perl_debug_log, " PV = 0x%lx \"%s\"\n CUR = %ld\n LEN = %ld\n",
5179 (long)SvPVX(sv), SvPVX(sv), (long)SvCUR(sv), (long)SvLEN(sv));
5181 PerlIO_printf(Perl_debug_log, " PV = 0\n");
5183 if (type >= SVt_PVMG) {
5185 PerlIO_printf(Perl_debug_log, " MAGIC = 0x%lx\n", (long)SvMAGIC(sv));
5188 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(SvSTASH(sv)));
5192 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", LvTYPE(sv));
5193 PerlIO_printf(Perl_debug_log, " TARGOFF = %ld\n", (long)LvTARGOFF(sv));
5194 PerlIO_printf(Perl_debug_log, " TARGLEN = %ld\n", (long)LvTARGLEN(sv));
5195 PerlIO_printf(Perl_debug_log, " TARG = 0x%lx\n", (long)LvTARG(sv));
5196 sv_dump(LvTARG(sv));
5199 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n", (long)AvARRAY(sv));
5200 PerlIO_printf(Perl_debug_log, " ALLOC = 0x%lx\n", (long)AvALLOC(sv));
5201 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)AvFILLp(sv));
5202 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)AvMAX(sv));
5203 PerlIO_printf(Perl_debug_log, " ARYLEN = 0x%lx\n", (long)AvARYLEN(sv));
5204 flags = AvFLAGS(sv);
5206 if (flags & AVf_REAL) sv_catpv(d, ",REAL");
5207 if (flags & AVf_REIFY) sv_catpv(d, ",REIFY");
5208 if (flags & AVf_REUSED) sv_catpv(d, ",REUSED");
5209 PerlIO_printf(Perl_debug_log, " FLAGS = (%s)\n",
5210 SvCUR(d) ? SvPVX(d) + 1 : "");
5213 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n",(long)HvARRAY(sv));
5214 PerlIO_printf(Perl_debug_log, " KEYS = %ld\n", (long)HvKEYS(sv));
5215 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)HvFILL(sv));
5216 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)HvMAX(sv));
5217 PerlIO_printf(Perl_debug_log, " RITER = %ld\n", (long)HvRITER(sv));
5218 PerlIO_printf(Perl_debug_log, " EITER = 0x%lx\n",(long) HvEITER(sv));
5220 PerlIO_printf(Perl_debug_log, " PMROOT = 0x%lx\n",(long)HvPMROOT(sv));
5222 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", HvNAME(sv));
5226 PerlIO_printf(Perl_debug_log, " PROTOTYPE = \"%s\"\n", SvPV(sv,PL_na));
5229 PerlIO_printf(Perl_debug_log, " STASH = 0x%lx\n", (long)CvSTASH(sv));
5230 PerlIO_printf(Perl_debug_log, " START = 0x%lx\n", (long)CvSTART(sv));
5231 PerlIO_printf(Perl_debug_log, " ROOT = 0x%lx\n", (long)CvROOT(sv));
5232 PerlIO_printf(Perl_debug_log, " XSUB = 0x%lx\n", (long)CvXSUB(sv));
5233 PerlIO_printf(Perl_debug_log, " XSUBANY = %ld\n", (long)CvXSUBANY(sv).any_i32);
5234 PerlIO_printf(Perl_debug_log, " GV = 0x%lx", (long)CvGV(sv));
5235 if (CvGV(sv) && GvNAME(CvGV(sv))) {
5236 PerlIO_printf(Perl_debug_log, " \"%s\"\n", GvNAME(CvGV(sv)));
5238 PerlIO_printf(Perl_debug_log, "\n");
5240 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)CvFILEGV(sv));
5241 PerlIO_printf(Perl_debug_log, " DEPTH = %ld\n", (long)CvDEPTH(sv));
5242 PerlIO_printf(Perl_debug_log, " PADLIST = 0x%lx\n", (long)CvPADLIST(sv));
5243 PerlIO_printf(Perl_debug_log, " OUTSIDE = 0x%lx\n", (long)CvOUTSIDE(sv));
5245 PerlIO_printf(Perl_debug_log, " MUTEXP = 0x%lx\n", (long)CvMUTEXP(sv));
5246 PerlIO_printf(Perl_debug_log, " OWNER = 0x%lx\n", (long)CvOWNER(sv));
5247 #endif /* USE_THREADS */
5248 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n",
5249 (unsigned long)CvFLAGS(sv));
5250 if (type == SVt_PVFM)
5251 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)FmLINES(sv));
5254 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", GvNAME(sv));
5255 PerlIO_printf(Perl_debug_log, " NAMELEN = %ld\n", (long)GvNAMELEN(sv));
5256 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n",
5257 SvTYPE(GvSTASH(sv)) == SVt_PVHV ? HvNAME(GvSTASH(sv)) : "(deleted)");
5258 PerlIO_printf(Perl_debug_log, " GP = 0x%lx\n", (long)GvGP(sv));
5259 PerlIO_printf(Perl_debug_log, " SV = 0x%lx\n", (long)GvSV(sv));
5260 PerlIO_printf(Perl_debug_log, " REFCNT = %ld\n", (long)GvREFCNT(sv));
5261 PerlIO_printf(Perl_debug_log, " IO = 0x%lx\n", (long)GvIOp(sv));
5262 PerlIO_printf(Perl_debug_log, " FORM = 0x%lx\n", (long)GvFORM(sv));
5263 PerlIO_printf(Perl_debug_log, " AV = 0x%lx\n", (long)GvAV(sv));
5264 PerlIO_printf(Perl_debug_log, " HV = 0x%lx\n", (long)GvHV(sv));
5265 PerlIO_printf(Perl_debug_log, " CV = 0x%lx\n", (long)GvCV(sv));
5266 PerlIO_printf(Perl_debug_log, " CVGEN = 0x%lx\n", (long)GvCVGEN(sv));
5267 PerlIO_printf(Perl_debug_log, " LASTEXPR = %ld\n", (long)GvLASTEXPR(sv));
5268 PerlIO_printf(Perl_debug_log, " LINE = %ld\n", (long)GvLINE(sv));
5269 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)GvFILEGV(sv));
5270 PerlIO_printf(Perl_debug_log, " EGV = 0x%lx\n", (long)GvEGV(sv));
5273 PerlIO_printf(Perl_debug_log, " IFP = 0x%lx\n", (long)IoIFP(sv));
5274 PerlIO_printf(Perl_debug_log, " OFP = 0x%lx\n", (long)IoOFP(sv));
5275 PerlIO_printf(Perl_debug_log, " DIRP = 0x%lx\n", (long)IoDIRP(sv));
5276 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)IoLINES(sv));
5277 PerlIO_printf(Perl_debug_log, " PAGE = %ld\n", (long)IoPAGE(sv));
5278 PerlIO_printf(Perl_debug_log, " PAGE_LEN = %ld\n", (long)IoPAGE_LEN(sv));
5279 PerlIO_printf(Perl_debug_log, " LINES_LEFT = %ld\n", (long)IoLINES_LEFT(sv));
5280 PerlIO_printf(Perl_debug_log, " TOP_NAME = \"%s\"\n", IoTOP_NAME(sv));
5281 PerlIO_printf(Perl_debug_log, " TOP_GV = 0x%lx\n", (long)IoTOP_GV(sv));
5282 PerlIO_printf(Perl_debug_log, " FMT_NAME = \"%s\"\n", IoFMT_NAME(sv));
5283 PerlIO_printf(Perl_debug_log, " FMT_GV = 0x%lx\n", (long)IoFMT_GV(sv));
5284 PerlIO_printf(Perl_debug_log, " BOTTOM_NAME = \"%s\"\n", IoBOTTOM_NAME(sv));
5285 PerlIO_printf(Perl_debug_log, " BOTTOM_GV = 0x%lx\n", (long)IoBOTTOM_GV(sv));
5286 PerlIO_printf(Perl_debug_log, " SUBPROCESS = %ld\n", (long)IoSUBPROCESS(sv));
5287 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", IoTYPE(sv));
5288 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n", (long)IoFLAGS(sv));
5291 #endif /* DEBUGGING */